223303431320231 has 16 divisors (see below), whose sum is σ = 242639588213760. Its totient is φ = 204725658695040.

The previous prime is 223303431320183. The next prime is 223303431320243. The reversal of 223303431320231 is 132023134303322.

It is a de Polignac number, because none of the positive numbers 2^k-223303431320231 is a prime.

It is a super-2 number, since 2×223303431320231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223303431320261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221347700 + ... + 222354246.

It is an arithmetic number, because the mean of its divisors is an integer number (15164974263360).

Almost surely, 2^{223303431320231} is an apocalyptic number.

223303431320231 is a deficient number, since it is larger than the sum of its proper divisors (19336156893529).

223303431320231 is a wasteful number, since it uses less digits than its factorization.

223303431320231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1383254.

The product of its (nonzero) digits is 46656, while the sum is 32.

Adding to 223303431320231 its reverse (132023134303322), we get a palindrome (355326565623553).

The spelling of 223303431320231 in words is "two hundred twenty-three trillion, three hundred three billion, four hundred thirty-one million, three hundred twenty thousand, two hundred thirty-one".